Objects in the image:
category: car
category: person
category: car
category: truck
category: car
category: car
category: backpack
category: person
category: car
category: person
category: person
category: truck
category: truck
category: truck
category: car

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: No
q: is it a sign?
a: No
q: is it a person?
a: Yes
q: the guy in blue standing next to the pole?
a: No
q: the person with a brown backpack and black pants?
a: Yes